Here's suggested 3-night itinerary for visiting Oldoinyo Lengai Volcano and Lake Natron, showcasing its stunning landscapes and unique experiences:

Day 1: Arrival and Lake Natron

Morning: Arrive at Kilimanjaro International Airport. Transfer to Lake Natron (approximately 5-6 hours’ drive).

Afternoon: Check into your accommodation near Lake Natron.

Late Afternoon: Explore the area around Lake Natron. Spend time observing the lake’s distinctive colors and wildlife, especially the flamingos.

Evening: Enjoy a sunset view over Lake Natron.

Day 2: Oldoinyo Lengai Volcano Hike

Night: Depart for Oldoinyo Lengai (starts around 11-12 AM to reach the summit by sunrise).

Hiking: Ascend the volcano (approximately 9-10 hours round trip). The hike is challenging, but the views from the summit are spectacular, especially the sunrise.

Midday: Return to your base. Relax and enjoy a leisurely lunch.

Afternoon: Option to explore nearby Maasai villages. Learn about their culture and traditions.

Evening: Return to your accommodation, dinner, and rest.

Day 3: Lake Natron Exploration

Morning: Visit the nearby waterfalls (Engaresero or Ngare Sero) for some hiking and swimming in natural pools.

Afternoon: Return to Lake Natron for further exploration. Consider a guided to observe wildlife up close or relax by the lakeshore.

Evening: Enjoy a traditional dinner with a view over the lake.

Day 4: Departure

Morning: Enjoy breakfast with views of the lake.

Mid-Morning: Free time for last-minute photography or a stroll by the lake.

Afternoon: Depart from Lake Natron to Kilimanjaro International Airport for your onward journey.

Tips

1. Make sure to check weather and volcanic activity reports before your hike.

2. Bring plenty of water, snacks, sunscreen, and appropriate hiking gear.

3. Engage a local guide for safety and to enhance your experience.

This itinerary provides a balanced mix of adventure, cultural experiences, and relaxation in one of Tanzania's most stunning regions.